An overview of the species on the endangered list

However, due to major efforts to prevent extinction, the bald eagle, or Haliaeetus leucocephalus is now under the category of Least Concern on the red list. Under the Obama administrationthis policy has been reinstated. Using species data from the Database on the Economics and Management of Endangered Species DEMES database and the period that the Endangered Species Act ESA has been in existence, toa table was created that suggests a positive relationship between human activity and species endangerment.

This approximation, however, does not take into consideration the number of species threatened with endangerment that are not included under the protection of such laws as the Endangered Species Act. Also lobbying from hunters and various industries like the petroleum industryconstruction industry, and logginghas been an obstacle in establishing endangered species laws.

Some endangered species laws are controversial. Some landowners currently may perceive a diminution in value for their land after finding an endangered animal on it. Facing an extremely high risk of extinction. In other cases a stable ecological balance may be upset by predation or other causes leading to unexpected species decline.

New species may also carry diseases to which the native species have no resistance. Under the Endangered Species Act of in the United Statesspecies may be listed as "endangered" or "threatened". But even though all of these movements have been put in place, countries such as Japan continue to hunt and harvest whales under the claim of "scientific purposes".

In the early twenty-first century, as human population growth, large-scale agriculture, and increasing economic development impact the planet in ways never before seen, extinctions are occurring at an unprecedented rate.

They have allegedly opted to silently kill and bury the animals or destroy habitat, thus removing the problem from their land, but at the same time further reducing the population of an endangered species.

Population structure in the form of one of the following: Many began as food sources seen as necessary for survival but became the target of sport. Continuing decline, inferred, observed or projected, in any of the following: Five previous mass extinction events occurred during the Ordovician, Devonian, Permian, Triassic, and Cretaceous Periods.

A list complied by the World Conservation Union International Union for the Conservation of Nature and Natural Resources, or IUCN detailing the global conservation status and risk of extinction of thousands of species of animals and plants. Introduced species The introduction of non-indigenous species to an area can disrupt the ecosystem to such an extent that native species become endangered.

The Salt Creek tiger beetle Cicindela nevadica lincolniana is an example of an endangered subspecies protected under the ESA. Many private groups, including the World Conservation Union and the World Wildlife Federation, are also hard at work protecting endangered species.

Red List of Threatened Species: Such introductions may be termed alien or invasive species. Large whales like the blue whale, bowhead whale, finback whale, gray whale, sperm whale and humpback whale are some of the eight whales which are currently still included on the Endangered Species List.

Severely fragmented or known to exist at no more than five locations. Throughout the world, many nations have passed laws to limit hunting and development, or set aside preserves to offer protection to wildlife, especially endangered species.

Actions have been taken to attempt reduction in whaling and increase population sizes, including prohibiting all whaling in United States waters, the formation of the CITES treaty which protects all whales, along with the formation of the International Whaling Commission IWC.

Because of these laws and private efforts, the populations of many species have increased and returned from the brink of extinction. The World Conservation Union has estimated that as many as 40 percent of all organisms are under some degree of threat due to habitat destruction, disease, pollution, overhunting and overfishing, or other reasons.

Typical areas of controversy include: In some cases the invasive species compete with the native species for food or prey on the natives.The Massachusetts Endangered Species Act (MESA) was enacted in December (M.G.L cA).

Implementing regulations were promulgated in and most recently revised and implemented as of October 15, ( CMR ). The Massachusetts. 51 rows · WWF is committed to saving endangered species. Learn more about the species we are. The U.S. FWS's Threatened & Endangered Species System track information about listed species in the United States.

Endangered Species Act Legal Research: Overview A legal resource guide for information relating to the Endangered Species Act (ESA) including primary and secondary source materials, quick links, and database resources.